|
| 1 | +:root{ |
| 2 | + --bg: #070b18; |
| 3 | + --glowA: #6aa9ff; |
| 4 | + --glowB: #9b6bff; |
| 5 | + --glowC: #ff6ad5; |
| 6 | + --glowD: #7fffd4; |
| 7 | +} |
| 8 | + |
| 9 | +*{ box-sizing: border-box; } |
| 10 | +html, body{ |
| 11 | + height: 100%; |
| 12 | + margin: 0; |
| 13 | + background: radial-gradient(1100px 700px at 50% 42%, #0c1230, var(--bg)); |
| 14 | + color: #e9eefc; |
| 15 | + font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial; |
| 16 | +} |
| 17 | + |
| 18 | +.stage{ |
| 19 | + position: fixed; inset: 0; |
| 20 | + display: grid; place-items: center; |
| 21 | +} |
| 22 | + |
| 23 | +.tunnel{ |
| 24 | + position: relative; |
| 25 | + width: min(540px, 92vw); |
| 26 | + height: min(540px, 92vw); |
| 27 | + border-radius: 18px; |
| 28 | + overflow: hidden; |
| 29 | + background: |
| 30 | + radial-gradient(85% 65% at 50% 55%, #0b122d 0, #081025 60%, #070b18 100%), |
| 31 | + radial-gradient(#ffffff15 1px, transparent 1px); /* faint speckles */ |
| 32 | + background-size: auto, 3px 3px; |
| 33 | + background-position: 0 0, 0 0; |
| 34 | + filter: drop-shadow(0 20px 60px #0008); |
| 35 | + transform: perspective(900px) rotateX(22deg); |
| 36 | + animation: sway 8s ease-in-out infinite alternate; |
| 37 | +} |
| 38 | + |
| 39 | +.ring{ |
| 40 | + --h: calc(200 + 20 * var(--i)); /* hue-ish variation for fun if using hsl */ |
| 41 | + --c: hsl(var(--h), 90%, 70%); /* base color per ring */ |
| 42 | + --glow: 0 0 10px var(--c), 0 0 24px var(--c), 0 0 48px var(--c); |
| 43 | + |
| 44 | + position: absolute; left: 50%; top: 50%; |
| 45 | + width: 25vmin; height: 25vmin; /* base size before scaling */ |
| 46 | + transform: translate(-50%, -50%) scale(0.25); |
| 47 | + border-radius: 50%; |
| 48 | + background: |
| 49 | + radial-gradient(circle at 50% 50%, transparent 58%, var(--c) 60% 63%, transparent 66%), |
| 50 | + conic-gradient(from 0deg, |
| 51 | + transparent 0 10deg, rgba(255,255,255,.25) 10deg 12deg, transparent 12deg 24deg, |
| 52 | + rgba(255,255,255,.15) 24deg 26deg, transparent 26deg 36deg, |
| 53 | + rgba(255,255,255,.2) 36deg 38deg, transparent 38deg 48deg); |
| 54 | + mix-blend-mode: screen; |
| 55 | + box-shadow: var(--glow); |
| 56 | + filter: saturate(140%); |
| 57 | + opacity: 0; |
| 58 | + animation: |
| 59 | + fly 2.8s linear infinite, |
| 60 | + spin 6s linear infinite; |
| 61 | + animation-delay: calc(var(--i) * -0.2s); |
| 62 | +} |
| 63 | + |
| 64 | +@keyframes fly{ |
| 65 | + 0% { opacity: 0; transform: translate(-50%,-50%) scale(0.15); } |
| 66 | + 8% { opacity: .85; } |
| 67 | + 70% { opacity: .9; transform: translate(-50%,-50%) scale(1.25); } |
| 68 | + 100% { opacity: 0; transform: translate(-50%,-50%) scale(1.4); } |
| 69 | +} |
| 70 | + |
| 71 | +@keyframes spin{ |
| 72 | + to { transform: translate(-50%,-50%) scale(var(--s,1)) rotate(360deg); } |
| 73 | +} |
| 74 | + |
| 75 | +@keyframes sway{ |
| 76 | + from{ transform: perspective(900px) rotateX(22deg) rotateZ(-3deg); } |
| 77 | + to { transform: perspective(900px) rotateX(22deg) rotateZ( 3deg); } |
| 78 | +} |
| 79 | + |
| 80 | +@media (prefers-reduced-motion: reduce){ |
| 81 | + .tunnel{ animation: none; } |
| 82 | + .ring{ animation: none; opacity: 1; transform: translate(-50%,-50%) scale(1); } |
| 83 | +} |
0 commit comments